-11%
Sold out
Click to zoom in
Balanced 4 Inch Lift for Late 80s GM Suburbans
The Skyjacker C140AKSD8-M is a complete 4 inch suspension lift system built for 1988 to 1991 GM half ton Suburban models. The system pairs Skyjacker leaf springs with M95 monotube shocks to deliver a controlled ride at the taller stance, giving owners the ground clearance for larger tires without sacrificing comfort on daily drives. The C140AKSD8-M includes the springs, shocks, and hardware needed to complete a full lift installation.
Key Features
- Full 4 inch lift height for improved tire clearance
- M95 monotube shocks with high pressure nitrogen gas and floating piston technology
- Front and rear leaf spring set matched to the 4 inch lift height
- Bushing kit and U bolt kits included
- Limited lifetime warranty
Fitment
| Year Range | Make | Model |
|---|---|---|
| 1988 | Chevrolet | V10 Suburban |
| 1989-1991 | Chevrolet | V1500 Suburban |
| 1988-1991 | GMC | V1500 Suburban |
Specifications
| Detail | Value |
|---|---|
| Manufacturer Part Number | C140AKSD8-M |
| Brand | Skyjacker |
| Lift Height | 4 inch |
| Shock Type | M95 monotube |
| Spring Type | Leaf spring |
| Warranty | Limited lifetime |
| UPC | Not Published |
What's Included
- Front and rear leaf springs
- Front and rear M95 monotube shocks
- U bolt kits
- Bushing kit
About Skyjacker
Skyjacker Suspensions has manufactured lift systems in the United States since 1970, building its own springs and shocks in house. The C140AKSD8-M draws on that engineering to deliver a 4 inch lift that keeps ride quality close to stock while adding meaningful ground clearance, backed by a limited lifetime warranty.
Related Parts
- Skyjacker 6"SYS 73-87 1/2T SUBURBAN
- Skyjacker 8"SR 73-87 GM 1/2 W/REAR SP
FAQ
What is the C140AKSD8-M?The C140AKSD8-M is a Skyjacker 4 inch suspension lift system for 1988 to 1991 GM half ton Suburban models. It combines leaf springs with M95 monotube shocks to raise ride height while maintaining a controlled ride.
Does the C140AKSD8-M include shocks?Yes, the kit includes front and rear M95 monotube shocks matched to the 4 inch lift height.
What makes the M95 shock different from a standard twin tube shock?The M95 uses a single tube design with high pressure nitrogen gas and a floating piston, which helps the shock respond faster and run cooler under hard use.
Does the C140AKSD8-M fit two wheel drive Suburbans?The C140AKSD8-M is designed for the four wheel drive GM half ton Suburban platforms listed in the fitment table.
Is professional installation required for the C140AKSD8-M?Professional installation is recommended given the complexity of leaf spring and shock replacement.
Does the C140AKSD8-M include a warranty?Yes, Skyjacker backs the C140AKSD8-M with a limited lifetime warranty against manufacturing defects.
What tire size can I run after installing the C140AKSD8-M?A 4 inch lift typically allows for a moderate increase in tire diameter, though exact fitment depends on wheel offset and backspacing.
Can the C140AKSD8-M be paired with a taller lift kit later?The C140AKSD8-M is engineered as a complete 4 inch system, so mixing components with a taller kit is not recommended without confirming compatibility.
Install Instructions
- Raise and support the vehicle on jack stands rated for the vehicle weight
- Remove the factory front and rear leaf springs and shocks
- Install the Skyjacker leaf springs supplied in the C140AKSD8-M kit
- Secure the axle to the new springs using the supplied U bolt kits
- Install the M95 monotube shocks at the factory mounting points
- Torque all fasteners to manufacturer specifications
- Lower the vehicle and perform a front end alignment
Prop 65 Warning
This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Lift Kits
Shop lift kits, suspension lift kits, coilover lift kits, Pro-Truck lift kits, Stage 1, Stage 2, and Stage 2R lift systems, leveling kits, front strut spacer kits, rear lift blocks, coil spring lift kits, component boxes, upper control arms, lift springs, and reservoir shocks from Eibach, Skyjacker, Zone Offroad, Tuff Country, Belltech, MaxTrac, Fabtech, Rancho, and other truck and off-road suspension manufacturers. Find complete suspension lift packages, front-only strut leveling kits, rear-only block and shackle kits, Jeep and Gladiator component boxes with ADX M2.0 aluminum monotube shocks, Rancho QuickLift loaded struts, and lift hardware sized for daily-driven trucks, weekend adventure builds, and dedicated overland platforms. A properly matched lift kit raises ride height, opens up tire and wheel clearance, corrects factory rake on trucks and SUVs, and adds the ground clearance needed for larger tires and off-road use. This collection covers everything from 1.5-inch front s...
View Lift Kits Products
Skyjacker
Skyjacker suspension parts are stocked at Black Ops Auto Works for Jeep, Ford, Chevrolet, GMC, RAM, and Toyota trucks and 4x4 vehicles. Shop lift kits, leveling kits, dual rate coil springs, Black Max, Nitro 8000, Hydro 7000, and ADX M2.0 shocks, steering stabilizers, upper control arms, and suspension hardware. Every product is filterable by year, make, model, trim, and drivetrain so the correct Skyjacker part ships the first time. Black Ops Auto Works carries 1,596 Skyjacker SKUs across lift, leveling, and off-road suspension categories. What This Collection Covers Skyjacker builds off-road suspension systems for trucks and Jeeps that need more ground clearance, better ride control, improved steering stability, and stronger trail capability. Skyjacker is best known for lift kits, leveling kits, and long travel coil springs. Product Categories Lift kits and component boxes, leveling kits and strut spacers, dual rate and long travel coil springs, Black Max, Nitro 8000, Hydro 700...
View Skyjacker Products
Suspension
Suspension parts and complete kits for cars, trucks, SUVs, Jeeps, and off-road builds are stocked at Black Ops Auto Works. Shop coilovers, lowering springs, lift kits, leveling kits, shocks and struts, sway bars, control arms, tie rods, ball joints, bushings, chassis bracing, alignment hardware, air suspension, and complete stage kits from Bilstein, KW, Ohlins, Fox, KING, ICON, BC Racing, Silvers, Eibach, H&R, Swift Springs, Whiteline, Energy Suspension, Moog, SPC Performance, Rough Country, ReadyLIFT, BDS, Skyjacker, Air Lift, Firestone, and Black Ops Auto Works. Start with a matched shock and spring package or a full coilover kit, then layer in sway bars, chassis bracing, and camber adjustment hardware. Every part is filterable by year, make, model, trim, and drivetrain to confirm fitment before ordering. What This Category Covers Suspension is the highest-leverage handling upgrade on any vehicle. A properly matched shock, spring, and sway bar package produces measurable i...
View Suspension Products